Home / 5,142.40-7,096.51-2,784.54

Finding the Fourth Proportional to 5,142.40, 7,096.51 and 2,784.54

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Solution

The fourth proportional to 5,142.40, 7,096.51 and 2,784.54 is: 3,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.40 : 7,096.51 = 2,784.54 : x
  2. Step 2: Convert to fraction form
    5,142.40/7,096.51 = 2,784.54/x
  3. Step 3: Cross multiply
    5,142.40x = 7,096.51 × 2,784.54
  4. Step 4: Simplify right side
    5,142.40x = 19,760,546.05
  5. Step 5: Solve for x
    x = 19,760,546.05/5,142.40
  6. Step 6: Final answer
    x = 3,842.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.